The Tucson Garden Railway Society has its large scale model railroad display up and running at the Southern Arizona VA Health Care System, 3601 S. 6th Ave. The train show is free and open to the public on Friday, Dec. 27 from 9 a.m. to 4 p.m. and again on Monday, Dec. 30 from 9 a.m. to 2 p.m. in the R.E. Lindsey Jr. Auditorium at the hospital.